Clip-on sunglasses or similar article



FIG. 1 is a rear perspective view of clip-on sunglasses or similar article, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a front elevational view thereof; 

The ornamental design for clip-on sunglasses or similar article, as shown. 